Type-writing machine.



H. H. STEELE.

TYPE WRITING MACHINE.

APPLICATION FILED OCT. 2, 1909.

Patented Jan. 16, 1912.

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H. H. STEELE.

TYPE WRITING MACHINE.

APPLICATION FILED 0011.2, 1909.

4 SHEETS-SHEET 2.

1,014,673, v Patented Jan. 16, 1912.

WITNESSES. |NVENTEIR= COLUMBIA PMNOGRAPM cn.,WAsHINOTON, D-,C-

H. H STEELE.

TYPE WRITING MACHINE.

APPLICATION I'ILED 00w. 2, 1909.

Patented Jan. 16, 1912.

m INVENTEIR:

H H STEELE TYPE WRITING MACHINE.

APPLICATION FILED OUT 2, 1909. 1,014,673, Patented Jan. 16, 1912.

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P-IIE ATTEIRNEY m E m sT TEs PATENT OFFICE.

HERBERT H.

STEELE, OF MARCELLUS, NEW YORK, AS SIGNOR TO THE MONARCH TYPE- WRITERCOMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

Application filed October 2. 1909. Serial No. 520,684.

Specification of Letters Patent.

Patented Jan. 16,1912.

To all whom it may concern:

Be it known that I, HERBERT H. STEELE, citizen of the United States, andresident of Marcellus, in the county of Onondaga and State of New York,have invented certain new and useful Improvements in Type-WritingMachines, of which the following is a specification.

My invention relates to typewriting machines and more particularly tobilling mechanisms.

In some billing mechanisms heretofore devised both friction andpositively engaging clutches have been employed to connect certain ofthe stops with the platen in order to arrest the rotation thereof bothforwardly and backwardly. A purely friction clutch has its advantagesand disadvantages. It is advantageous in' that the movable billing stopmay be connected with the platen properly at any point in the rotationof the platen (whether or no a fractional spacer employed to overcomethe objections to the friction billing clutch but the ordinary positiveclutch is without the advantage of the friction clutch in adaptabilityto be instantly and properly engaged so as to connect the movable stopwith the platen without relative displacement between the billing stopand the platen and thus preserve the proper relationship between thework on the platen and the cooperating billing stops.

The disadvantage of an ordinary positive clutch is somewhat increasedwhen the platen is provided at its opposite end with a fractional linespacer, by the use of which the platen is adapted to be turned variabledistances while the line spacing ratchet wheel remains at rest. In theuse of such a fractional spacer it will be understood that relationintended to v the movable stop and v the platen or the work thereon. Apositive "clutch of the ordinary character may be while the latter is inits fractionally spaced position. A positive clutch of the kind referredto may consist of a toothed wheel corresponding in number of teeth andspaces to the line spacing wheel and of a single detent or tooth adaptedto be clutched with and unclutched from said toothed wheel. An exampleof this form of clutch may be seen in the patent to Felbel No. 902,572granted Nov. 3, 1908.

One of the main objects of my invention is to provide a construction ofclutch of the positive type for use in connection with the billing stopswhich shall not only possess all of the advantages of a friction clutchbut also all of the advantages of a positive clutch with the additional.advantage that it may be used in connection with a platen provided witha fractional spacer or with one not provided with such a mechanism.

nect the movable billing stop with the platen v Other objects are tofurther improve the detail construction of billing mechanism disclosedin said Felbel patent.

To the above and other ends my invention consists in the features ofconstruction, -arrangements of parts and combinations of devices to behereinafter described and particularly pointed out in the appendedclaims.

In the accompanying drawings wherein like reference characters indicatecorre sponding parts in the various views, Figure 1 1s a s1de elevationon an enlarged scale showing the upper portion of a typewriting machineembodying my invention, portions of certain devices being sectioned awayon the line ww of Fig. 2. Fig. 2 is a front elevation partly in sectionof a carriage embodying my improvements, the right-hand finger wheelbeing broken away in this view. Fig. 2 is an end view showing the platenclutch. Fig. 3 is an'enlarged detail central sectional view, the sectionbeing. taken on the line w-m of Fig. 1. Fig. 4 is an end view partly insection showing parts of the clutch mechanism for the biller, the Viewshowing the parts as they would appear with the cover plate removed andas seen from the right-hand end. Fig. 5 is a transverse sectionalview'of the same taken on a line g y of Fig. 3 and looking in the directionof the arrow at said line. Fig. 6 is a fragmentary detail front viewwith parts in section showing the controlling handle or lever for theclutch and the latch or look oooperative with said lever. Fig. 7 is adetail trolling wedge or cone and a portion of the lever by which it isshifted. Fig. 8 is a de tail top view showing two of the cooperatingbilling stops and an associated spring friction device. Fig. 9 is afragmentary sectional view, showing some of the parts illustrated inFig. 3, the section on which the parts in Fig. 9 are taken correspondingsubstantially to that shown in Fig. 3 but showing a differentdisposition of the parts. Fig. 10 is an enlarged detail fragmentarysectional view showing the driven wheel of the billing device and themeans for supporting it and the bracket plate and for adjusting thedriven wheel, the section being taken on the line z-z of Fig. 1 andlooking in the direction of the arrow at said line.

The invention is in the nature of an improvement upon the, constructiondisclosed in the Felbel patent hereinbefore referred to, the presentinvention being directed more particularly to improving the clutchmechanism by which the stop mechanism may be rendered operative orinoperative to arrest the platen.

While I have shown my invention embodied in a Monarch machine andemployed in connection with billing devices of the character shown inthe patent to Felbel hereinbefore referred to, it should be understoodthat the invention may be embodied in other styles of typewritingmachines, and from certain aspects of my invention, the clutch devicesmay be employed in connection with billing devices of a differentcharacter from those shown in said patent.

The top plate 1 of the machine supports standards 2 to which oppositelygrooved guide rails 3 are secured. The rear cross and guide bar 4 of thecarriage is provided with oppositely grooved guide rails 5, which withthe fixed guide rails 3 form ways to receive anti-friction balls orrollers 6 which support and guide the carriage in its movements fromside to side. of the machine over. the top plate.- Extending forwardlyfrom the rear cross bar 4 of the carriage are end bars 7 and 8. Theseend bars 7 and 8 are apertured to enable the platen shaft 9 to extendtherethrough and to provide for the reception of journal bearings 10 forthe platen shaft. A cylindrical rotative platen 11 is fixed by a setscrew 12 to the platen shaft. The line spacing wheel 13 is formed withcrown ratchet teeth 14 with which a line spacing pawl 15 cooperates. Thepawl 15 is pivoted at 16 to a pivoted arm 17. An arm 18 is secured to arock shaft 19 and co acts with a line spacing pawl to move itintoengagement with the teeth of the line spacing wheel and to move thepawl carrying arm 17 and thus rotate the platen. The

forward end of the shaft 19 is provided withv clearly appear.

-a finger piece 20 by which the rock shaft 19 and line spacing pawl areactuated. The

usual spring-pressed detent roller 13 bears on the teeth of the linespacing wheel. Upwardly extending lugs 21 and 22 are formed on the endplates of the carriage and are connected by a cross bar or rod 23.Finger wheels 24 and 25 are connected to the ends of the platen shaft torotate the platen. The line spacing wheel 13 is'adapted to be connectedwith the platen by a clutch such as that now regularly employed in theMonarch machine. This clutch enables the platen to turn independently ofthe line spacing ,wheel as will hereinafter more It should beunderstood, however, that so far as my invention is concerned it isimmaterial what character of platen clutch is employed and from certainaspects of my invention it is immaterial whether or not a platen clutchis employed. My invention however has special utility when employed inconnection with a machine in which a platen clutch is used. The partsthus far described are like those embodied in the Monarch machine andfurther detailed description thereof is deemed unnecessary.

The right-hand end of the platen shaft 9 is extended farther than usualbeyond the end plate 21 of the carriage and forms a bearing for ashouldered sleeve 26 (see Fig. 3). This sleeve is received in and fixedto a sheet metal bracket plate 27 secured to the frame of the machine bya screw 28.

From an inspection of Fig. 10 it will be seen that the bracket plate 27is adjustably supported at its rear end on the carriage by an anglebracket 29 (see Fig. 10), a screw passing through an enlarged opening inthe bracket plate 27 and taking at its threaded end into a tappedopening in the angle bracket 29. A second screw passes through anenlarged opening in the angle bracket 29 and takes into a tapped openingin the rear of the end bar 7. A shouldered headed screw 30 has anenlarged portion 31 which constitutes a bearing for a driven band orsprocket wheel 32, the shoulder on the screw 30 hearing against thebracket plate 27. The screw has a reduced threaded end which passesthrough an enlarged opening 27 in the plate 27 to afford an adjustmentof the screw and the wheel 32 carried thereby lengthwise of the plate 27to take up any undue slack in the sprocket chain which passes around thewheel 32. A nut 30 which is in the nature of an eccentric co-acts withthe threaded end of the screw back of the plate 27 and the edge of theeccentric is adapted to bear against a pin 30 riveted to the plate 27 inorder to resist any tendency of the sprocket chain to displace the screw30 from its adjusted position. It will be seen therefore that thebracket plate 27 is rigidly secured in place on the right-hand end plateof the carriage and constitutes a support for various portions ofthebilling devices, as will appear more clearly from the followingdescription.

From an inspect-ion of Fig. 3 it will be seen that the sleeve 26constitutes a bearing on which a hub 33 of a shell or housing 34 isadapted to turn freely. A driving, sprocket, or band wheel 35 surroundsthe hub 33 of the housing and is rigidly fixed thereto by any suitablemeans as by a drive fit. The housing 34 is closed at one end by a wall36 which connects the housing with its supporting hub 33. The oppositeend of the housing is closed by a cover plate 37 detachably secured inplace by screws 37 An internal circumferential shoulder 38 is formedwithin the housing to constitute a seat for a ring 39 provided withinternal teeth 40 having oppositely inclined faces see Figs. 4 and 5).The toothed ring 39 is rigidly secured to the shell or housing 34 bypins 41. A member 42 is contained within the housing and surrounds theplaten shaft 9 and is secured thereto by a pin 43, the housing 34abutting one end of the member 42. The member 42 has a portion 44thereon which is of a diameter that corresponds substantially to thespace within the circular series of inwardly projecting teeth 40, themember 44 receiving a slight bearing. contact on the crowns of the teethin order to afiord an additional support for the housing or shell. Themember 43 has a central recess or depression 45 in which the inner endsof three radially movable pawls or dogs 46, 47 and 48 project. Thesedogs are received and move radially in radial slots or ways 49 formed inthe member 42 (see Fig. 4). The member 42 is slotted at 50 (see Figs. 3,4 and 5) opposite each sliding pawl to enable a pin 51 carried by theassociated pawl to project through to the opposite side of the part 44as illustrated in Fig. 3. The relation of the slots 50 and the pins 51is such that when the dogs or pawls are fully withdrawn from engagementwith the cotiperating teeth 40 the pins 51 will be seated against thebottom walls 52 of the slots 50 to limit the inward radial movements ofthe pawls as clearly shown in Fig. 9. From an inspection of Fig. 5 itwill be seen that three coiled contractile springs 53 are each connectedat opposite ends to two of the pins 51 so. that said springs 53 exert aninward pressure on the radially movable I dogs or pawls to withdraw themfrom engagement with the teeth 40. The teeth 54 on the pawls 46, 47 and48 have oppositely inclined engaging faces which correspond to thespaces between the teeth 40 with which the dogs coiiperate. There arefifty-nine teeth shown in the present instance on the ring 39 and therelation between the locking or engaging pawls 46, 47, 48 and the teeth40 is such that when the parts are in looking position two of thelocking dogs will at all times engage upon opposite sides of the engagedteeth 40 to prevent a relative movement between the members 39 and 44,as shown clearly in Figs. 4 and 5. The construction is likewise suchthat each pawl or looking dog may engage on either one side or anotherof any tooth 40 of the member 39, the side of a tooth 40 which isengaged and the depth of engagement depending on the relative rotativepositions of the two members. The pawls are forced into lockingengagement with the teeth 40 by a controlling member 55 which is in thenature of a loosely supported cone, circular cam or wedge provided withan enlarged central opening 56, the cone loosely surrounding the platenshaft 9, as clearly shown in Figs. 3, 4 and 9. The inner conical endportion of the member 55 is'arranged centrally of and is adapted to bearagainst the inner ends of the engaging dogs or pawls as shown in Fig. 4,in order to cam or wedge the pawls into engagement with the teeth 40 andto lock and maintain them in such engagement.

From an inspection of Fig. 3 it will be seen that a sleeve 57 surroundsthe platen shaft and is itself surrounded by a coiled expansion spring58 which bears at one end against the bottom wall of a cup or housing 59apertured. centrally to receive the platen shaft and bearing at itsouter end against the hub 60 of the right-hand finger wheel 24. Theinner end of the spring 58 bears against a circular flange 61 formed onthe sleeve 57. The inner end 62 of the sleeve bears against the outerface or end of the cone, wedge or cam 55 so as to force the inner endsof the radially movable dogs. The member 55 is in the nature of afloating cam which is free to move longitudinally'and laterally of theaxis of the platen to accommodate itself to the positions of the pawls46, 47 and 48 when they have been arrested by the teeth 40 in theirengaging movements, the member 55 at this time often being eccentricallydisposed as shown in Fig. 4.

It will be observed that the construction is such that the greaterpressure of the spring 58 will overcome the pressure of the springs 53and will normally force the pawls 46, 47 and 48 into engagement withtheir cotiperative teeth 40 to lock the members 39 and 44 to rotatetogether irrespective of the relative rotative position of adjustmentbetween the members 39 and 44. Itwill also be observed that theconstruction is such that a greater or less extent of engagement betweenone or another of the pawls and the teeth 40 is eflected, depending onthe relative position of rotative ad- 1105 cam to the left intoengagement with the v justment between the members 39 and 40,

but that in all cases two of the pawls will engage on opposite sldes oftheir engaged teeth 40 in order to prevent a relative rotation betweenthe two members and to posiwhich the member may be moved against itsspring pressure to release the locking pawls from engagement with theteeth 40. Thus the bracket plate 27 is provided with an arm 63 (seeFigs. 1 and 3) which'extends downwardly and to the right there from andthen upwardly toform a bearing arm for a release lever 64. This lever isprovided with a finger piece 64 at its forward end and at its rear endis apertured to receive a headed shouldered screw 65 which passes freelythrough the opening in the lever and engages a tapped opening in thebracket arm 63 and receives a lock nut 66 at its lower threaded end. Therelease lever has an aperture 67 intermediate its ends (see Figs. 1, 3and 7) through which the platen shaft 9 extends, the lever embracing theshaft and the sleeve 57. Rounded engaging projections 68 are formed onone side of the lever for cooperation with the flange 61 so that aswinging movement of the release lever to the right is effective to movethe sleeve 57 longitudinally to the right against the pressure of itsspring 58. This releases the pressure of the spring 58 on the wedge ormember 55 and the springs 53 are then rendered effective to withdraw theengaging pawls 46, 47 and 18 from engagement with the teeth 40, theinwardmovement of the pawls being limited by the pins 51, carriedthereby, contacting with the bottom walls 52 of the slots 50, ashereinbefore described. From the foregoing description it will beunderstood that the pawls 46, 47 and 48 are positively connected torotate wit-h the member 42 which in turn is fixed to the platen shaftand to the platen and constitutes a clutch member which cooperates withthe teeth 40. The member 39 carrying the teeth 40 on the other hand isconnected to the shell or housing 34 which is free to turn around theplaten shaft, or more properly speaking, affords a turning movement ofthe platen independently thereof when the pawls 46, 47 and 48 aredisengaged from the teeth 40." The shell 34 as hereinbefore described isrigidly connected to the driving sprocket or band wheel 35 whichcooperateswith an endless band or sprocket chain 69 which likewisesurrounds and cooperates with the driven sprocket or band wheel 32. Atraveling stop 70 isconnected to the sprocket chain 69 and surrounds andslides upon a bar 71 secured at its rear end by a screw 72 to anupwardly projecting ear 73 formed on the bracket plate 27. The forwardend of the bar 71 is secured by a screw 74 to a bracket arm 75 formed onthe bracket plate 27. An adjustable stop 76 is seated on and adapted tobe adjusted along the bar 71 and is secured in its adjusted position bya set screw 77 received in a tapped opening in the stop 76 and hearingat its inner end against the stop carrying bar 71. The outer side orface of the bar 71 is preferably provided with indices as indicated at78 to indicate line space positions in the rotative movement of theplaten, these indices facilitating an adjustment of the adjustable stop76. A fixed stop 79 likewise projects laterally from the stop bar 71 atthe forward end thereof. i

From what has been said it will be under- Siood that the traveling stop70 moves in a rectilinear path as does that portion of the driving chainor band 69 between the band wheels 32 and 35 and that in the movement ofthe traveling stop rearwardly it engages and is arrested by the stop 76,whereas in the forward movement of the traveling stop 70 it is arrestedby the fixed stop 79. If

therefore the billing clutch be engaged as indicated in Fig. 1, then thetraveling stop will be positively connected to the platen and a rotativemovement of the platen will effect a concurrent rectilinear movement ofthe traveling stop 70- between the stops 76 and 79 and the platen willbe arrested in its backward and forward movements. The construction ofthe sprocket wheels, sprocket chain, traveling stop and the stops withwhich it cooperates is somewhat similar to the construction disclosed inthe Felbel patent hereinbefore referred to and further detaileddescription thereof is deemed unnecessary. 'It is likewise believed thatit is unnecessary to describe in detail the manner of using the billingdevices for condensed recordand other work, since the operationoperationof writing a bill in condensed rec- 1 0rd work the clutch mechanism isreleased and the platen is rotated independently of the stop devices.

In order to notify the operator when the traveling stop 7 O isapproaching the adjustable stop 76, so that undue pressure may not beexerted against the stop 76, I have provided a friction or brake spring80 which is secured to the stop 76 and is adjustable therewith. As thestop 7 0 moves rearwardly on the stop bar 71 and is approaching the stop76, the spring 80 will contact with and eflect a pressure against thestop to resist the traveling movement of the stop 70. This pressureexerted by the spring is felt by the operator in turning the. platen andmovable stop and the operator will thus be notified of the approach ofthe stop 70 to the stop 76 and will not exert undue pres-' sure inbringing the stops 70 and 76 into engagement.

I have provided means for locking and maintaining indefinitely theclutch members out of engagement, it being understood that the spring 58normally maintains the clutch members in engagement. This locking meansfor the clutch comprises an angular bracket arm 81 (see Figs. 1, 2 and6), which is formed on the bracket plate 27 and extends to the rightfrom the forward end thereof. The bracket arm 81 is slotted at 82 toreceive the lever 64 therethrough and support and guide the forward endof the lever in. its swinging movement around its pivot screw 65. Alocking latch 83 is pivoted on the bracket arm 81 by a shouldered screw84, the barrel of the screw passing freely through an opening in the arm81 and taking at its threaded end into a tapped opening in the lockinglatch, the shoulder of the screw bearing against the latch. This latchis provided with a finger piece 85 arranged above the bracket arm 81 andis bifurcated at 86 to correspond to the slot 82 in the bracket arm. Ashoulder 87 is formed on the locking latch for engagement with the innerside of the lever 64 as indicated in Fig. 6 in order to lock the lever64 in the position shown in this figure and prevent a movement of thelever from right to left. A leaf spring 88 is secured at one end 89 tothe locking latch and bears at its free end against a pin 90 whichprojects rearwardly from the bracket arm 81'. The pressure of thisspring tends to elevate the looking latch to the position shown in' Fig.6 so that when the lever 64 is moved to the right beyond the shoulder 87the latch 83 will be moved upwardly by its spring to the lockingposition shown, thus preventing a return of the lever 64 to thelockingposition until adownward pressure is exerted on the finger key 85 of thelocking latch. This is effective to depress the locking latch and freethe shoulder 87 thereof from the lever 64. The'pressure of the spring 58then becomes effective to move the lever 64 to the left, together withthe wedge 55, thus projecting the locking dogs radially into engagementwith the teeth 40 to positively connect the clutch members together andto effect a positive connection between the trav eling stop 70 and theplaten.

The platen clutch shown at the left-hand end of the platen in Fig. 2 andby which the line spacing wheel 13 and platen 11 are connected consistsof three pawls 91 mounted to slide radially in grooves formed in theleft-hand platen head 92 on which the line spacing wheel is looselymounted to enable the platen to turn independently thereof when freedfrom the engaging pawls. The pawls 91 have engaging teeth withinclinedfaces adapted to engage corresponding teeth 93 which projectinwardly from the line spacing wheel. The arrangement of the pawls andteeth is such that they may be brought into engagementat any position ofrelative rotativefadjustinent be tween the platen and line spacingwheelin the same manner as the billing clutch hereinbefore described.Each of the pawls 91 has two cam faces, one'a releasing cam 94 and theother a locking cam 95. Individually movablespring-pressed wedges orcams 96 co-act with the cams .95 on the locking pawls to force andmaintain the pawls in locking engagement with the teeth 93 of the linespacing wheel. cam 97 co-acts at its center-flat portion with the wedges96 to force them out of engage ment with the pawls 91 and then the camportion of the member 97 co-acts with the" cams 94 to force the pawls 91out of engagement with the teeth 93 on the line spacing wheel. Thelongitudinal movement of the member 97 is controlled by a finger piece98' which turns on the axis of the platen and through its cam 99 mayforce the spring member 100 to the right which in turn moves the member97 to the right. I have referred to this clutch mechanism moreparticularly to make the advantages of my invention clear. Thus if thefractional platen spacing clutch should be actuated one of the clutchmembers of the biller (the pawls 46, 47 and 48) would receive a corresponding rotative adjustment for a frac-' tion of a line space whilethe other clutch member (the teeth 40) remains at rest, it beingunderstood that at this time the pawls 46, 47- and 48 are disengagedfrom the teeth ment between the two, even though the A circular release:

platen after fractional spacing has been left in a fractional spaceposition. If, however, a clutch such as that shown for instance in theFelbel patent hereinbefore referred to were employed in connection witha fractional spacer such for example as herein shown, the clutch membersof the biller would under certain fractional line spacing conditions beout of register and either they could not be engaged or therenecessarily would have to be a relative displacement between thetraveling stop 70 and the platen, to enable the clutch members toproperly engage. It will be seen therefore that these disadvantages areovercome without sacrificing the advantages derived from the use of apositively engaging clutch, which in practice has been found superior toa friction clutch, on account of the liability of the latter to slipwhen the platen is violently turned by the knobs or finger wheels on theplaten.

It will be seen that by my present invention I effectively andpositively lock the traveling stop 70 of the billing devices to theplaten irrespective of the position of the platen when the clutchmembers are thrown into engagement and whether or not the platen at thetime the clutch members are engaged is accurately positioned in the linespace position. Moreover it will be understood that in the engagement ofthe clutch -members there is no relative displacementbetween the stopmechanism and the platen,

the traveling stop being positively connected to the platen in anyposition of arrest of the latter.

From the foregoing description it will be understood that the billingdevices including the clutch mechanism by which it is operativelyconnected with and disconnected from the platen are carried by the plate27 and are situated entirely outside of the right-hand end bar of thecarriage and the devices are in the nature of an attachment which may bereadily applied to existing forms of typewriting machines substantiallywithout modifying any of the structural features of said machines.

Various changes may be made without departing from the spirit and scopeof. my invention. i

What I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of a cylindrical platen; aline spacing wheel; a clutch to connect the line spacing wheel andplaten to turn together or to disconnect said parts to enable the platento rotate independently of the line spacing wheel; and stop mechanismfor arresting the platen after a predetermined. extent of rotation andfor affording a continued rotation of the platen to any desired extentafter it has been arrested, said mechanism.

comprising means for positively clutching and connecting certainportions of the stop mechanism with the platen at any position ofrelative adjustment between the two.

2. In a typewriting machine, the combination of a rotative platen; aline spacing wheel; a clutch to connect the line spacing wheel andplaten to turn together or to disconnect said parts to enable the platento rotate independently of the line spacin wheel; stops for arrestingsaid platen; chain for moving certain of said stops; and means forenabling the platen to rotate independently of said stops, said meanscomprising two cooperative positively engaging clutch members oneoperatively connected to the platen and the other operatively connectedto the stop mechanism, said clutch members including means whereby theyare cooperative to engage with one another at any position of relativeadjustment between the two, and hand actuated means for controlling theengagement and disengagement of said clutch members.

3. In a typewriting machine, the combination of a rotative platen, aline spacing wheel; a clutch to connect the line spacing wheel andplaten to turn together or to disconnect said parts to enable the platento rotate independently of the line spacing wheel: a platen frame; achain; stops for arresting said platen, certain of said stops being heldagainst movement on the platen frame and certain of them being moved bythe chain: means for effecting a relative adjustment between certain ofsaid stops; and means which enable the platen to be turned to anydesired extent without being arrested by said stops, said last mentionedmeans comprising two positively engaging clutch members one of which isoperatively connected to the platen and the other of which isoperatively connected to said chain, the clutch members including meanswhereby they may be positively connected at any position of relativeadjustment between the two, and hand actuated means operable at will foreffecting an engagement and disengagement between the clutch members.

4. In a typewriting machine, the combination of a rotative platen; aline spacing wheel; a clutch to connect the line spacing wheel andplaten to turn together or to disconnect said parts to enable the platento rotate independently of the line spacing wheel; a platen shaft; aplaten frame; a pair of wheels one of which is a driving wheel looselymounted on the platen shaft; an endless chain which passes around said.wheels; a rod or bar fixed to the platen frame and extending parallelwith said chain where it passes from wheel to wheel;

two relatively adjustable stops carried by the driving wheel to anddisconnecting it from the platen shaft, said clutch comprising twopositively engaging clutch members one operatively connected to thedriving wheel and the other to the platen, and means whereby said clutchmembers maybe positively engaged at any position ofrelative adjustmentbetween the two.

5. In a typewriting machine, the combination of a rotative platen: aline spacing wheel; a clutch to connect the line spacing wheel andplaten to turn together or to dis connect said parts to enable theplaten to rotate independently of the line spacing wheel; an endlessband which is adapted to move concurrently with the rotative movement ofthe platen; stop devices for arresting said endless band and platen; anda clutch for operatively connecting the band with the platen, saidclutch comprising two positively engaging members and means whereby saidclutch members are cooperative at any position of relative adjustmentbetween the two, one of said clutch members being operatively connectedto the platen and the other being operativelyconnected. to the endlessband, and hand actuated means operable at will for effecting aconnection ind disconnection between said clutch memers.

6. In a typewriting machine, the combination of a rotative platen; aline spacing wheel; a clutch to connect the line spacing wheel andplaten to turn together or to disconnect said parts to enable the platento rotate independently of the line spacing wheel; stop mechanism forarresting the platen after a predetermined extent of rotation; and meansfor affording a continued rotation of the platen to' any desired extentafter it has been arrested, said last mentioned means comprising aclutch member operatively connected to the platen, a second clutchmember operatively connected to the stop mechanism, one of the clutchmembers carrying teeth and the other of said clutch members carryingindependently movable dogs 00- operating with said teeth, and wedgingmeans cooperative with said independently movable dogs for effecting aninterlocking positive engagement between the clutch members at anyposition of relative adjustment between the two. 1

7 In a typewriting machine, the combination of a rotative platen; a linespacing wheel; a clutch to connect the line spacing wheel and platen toturn together or to disconnect said parts to enable the platen to rotateindependently of the line spacing wheel; a stop mechanism for arrestingthe platen after a predetermined extent of rotation; and means foraffording a continued rotation of the platen to any desired extent afterit has been arrested, said last mentioned means comprising a clutchmember operatively connected to the platen, and a second clutch memberoperatively connected to the stop mechanism, one of said clutch memberscarrying teeth and the other of said clutch members carryingindependently movable dogs cooperating with said teeth,

each of said dogs being adapted to engage either side of any of saidteeth and the arrangement being such that in any relative position ofthe two clutch members one of said dogs will prevent relative motion ofthe two clutch members in one direction and, at least one of said dogswill prevent relative motion of said clutch members in the oppositedirection.

8. In a typewriting machine, the combination of a rotative platen; aline spacing wheel; a clutch to connect the line spacing wheel andplaten to turn together or to disconnect said parts to enable the platento rotate independently of the line spacing wheel; stop mechanism forarresting the each of said dogs being adapted to engage v either side ofany of said teeth and the arrangement being such that in any relativeposition of the two clutch members one of said dogs will preventrelative motion of the two clutch members in one direction and at leastone of said dogs will prevent relative motion of said clutch members inthe'opposite direction, and wedging means cooperative with saidindependently movable dogs for holding said dogs in engagement with saidteeth.

9. In a typewriting machine, the combination of a rotative platen; aline spacing wheel; a clutch to connect the line spacing wheel andplaten to turn together or to disconnect said parts to enable the platento rotate independently of the line spacing wheel; stop mechanism forarresting the platen after a predetermined extent of rotation; and meansfor affording continued rotation of the platen to any desired extentafter it has been arrested, said last mentioned means comprising aclutch member operatively connected to the platen, a second clutchmember operatively connected to the stop mechanism, one of the clutchmembers having a series of teeth and the other of said clutch memberscarrying three dogs each adapted to engage either side of any one ofsaid teeth, the arrangement being such that in any relative position ofthe two clutch members at least one of said dogs will positively preventrelative motion between said clutch members in one direction and atleast one of said dogs will positively prevent relative motion betweensaid clutch members in the opposite direction.

10. In a typewriting machine, the combination of a rotative platen; aline spacing wheel; a clutch to connect the line spacing wheel andplaten toturn together or to disconnect said parts to enable the platento rotate independently of the line spacing wheel; stop mechanism forarresting the platen after a predetermined extent ofrotation; and meansfor affording a continued rotation of the platen to any desired extentafter it has been arrested, said last mentioned means comprising aclutch member operatively connected to the platen, a'second clutchmember operatively connected to said stop mechanism, one of said clutchmembers having a circular series of teeth and the other of said clutchmembers having a plurality of independently movable dogs, and means forcamming each of said dogs into engagement with said teeth, thearrangement being such that in any relative position of said clutchmembers at least one of the dogs will positively prevent relativerotation between said clutch members in one direction and at least oneof said dogs will prevent relative rotation between said clutch membersin the opposite direction.

11. In a typewriting machine, the combination of a rotative platen; aline spacing wheel; a clutch to connect the line spacing wheel andplaten to turn together or to disconnect said parts to enable the platento rotate independently of the line spacing wheel; stop mechanism forarresting the platen after a predetermined extent of rotation; and meansfor affording a continued rotation of the platen to any desired extentafter it has been arrested, said last mentioned means comprising aclutch member operatively connected to the platen, a second clutchmember operatively connected to the stop mechanism, one of saidclutchmem bers having a series of teeth each of said teeth having inclinedsides, a plurality of independently movable dogs carried by the other ofsaid members and each of said dogs having two engaging faces inclined tocor respond with the inclined faces of said teeth and each of said dogsbeing movable into and out of engagement with said teeth, thearrangement being such that in any relative position of the two clutchmembers at least one of said dogs will have one of its faces engagingone of the faces of one of said teeth to prevent relative motion betweensaid clutch members in one direction and at least one of said dogs willhave one of its faces engaging one of the faces of one of said teeth toprevent relative motion 'between said clutch members in the oppositedirection, and means for moving iiito and out of engaging position.

12. In a typewriting machine, the combi nation of a rotative platen; aline spacing wheel; a clutch to connect the line spacing wheel andplaten to turn together or to dis connect 'said parts to enable theplaten to rotate independently of the line spacing wheel; stop mechanismfor arresting the platen after a predetermined extent of rotation; andmeans for affording a continued rotation of the platen to any desiredextent after it has been arrested, said last men tioned means comprisinga clutch member operatively connected to the platen, a sec ond clutchmember operatively connected to said stop mechanism, one of said clutchmembers having a series of internal teeth, each of the teeth havinginclined faces, a

plurality of independently movable'dogs on the other of said clutchmembers, each of said dogs having two engaging faces inclined tocorrespond with the inclined faces of said teeth and each'of said dogsbeing radially movable into and out of engagement with said teeth, thearrangement being such that in any relative position of said elements atleast one of said dogs will have one of its faces engaging one of thefaces of one of said teeth to prevent relative motion between saidclutch members in one direction and at least one of said dogs will haveone of its faces engaging one of the faces of said teeth to preventrelative rotation of said clutch members in the opposite direction, anda spring-pressed wedge for camming said dogs into engagement with saidteeth.

13. In a typewriting machine, the combination of a rotative platen; aline spacing wheel; a clutch to connect the line spacing wheel andplaten to turn together or to disconnect said parts to enable the platento rotate independently of the line spacing wheel; stop mechanism forarresting the platen after a predetermined extent of rotation; and meansfor affording a continued rotation of the platen to any desired extentafter it has been arrested; said last mentioned means comprising aclutch member operatively connected to the platen, a second clutchmember operatively connected to said stop mechanism, one of said clutchmembers carrying a series of teeth having inclined faces, three dogscarried by the other of said clutch members, said dogs having inclinedfaces, means forvmoving said dogs into engagement with said teeth, theengagement being such that in any relative position of said clutchmembers at leastone of said dogs will engage on one side or face of oneof said teeth and at least one of said dogs will engage on the otherside or face of one of said teeth and in some relative said dogsadjustments of the clutch members any one of said dogs will be engagedon one of its faces and in other adjustments the same dog will beengagedon the other face, and means for releasing said dogs, whereby saidplaten is positively and releasably connected with said stop mechanismby wedge action.

14. In a type writing machine, the combination of a rotative platen; aline spacing wheel; a clutch to connect the line spacing wheel andplaten to turn togetheror to disconnect said parts to enable the platento locking dogs mounted on the other of said,

clutch members for rectilinear radial motion into and out of engagementwith said teeth, and hand-operated means movable longitudinally of theplaten for controlling the engagement and disengagement of said dogs.

15. In a typewriting machine, the combination of a rotative platen; aline spacing wheel; a clutch to connect the line spacing wheel andplaten to turn together or to disconnect said parts to enable the platento rotate independently of the line spacing wheel; stop mechanism forarresting the platen after a predetermined extent of rotation; means foraffording a continued rotation of the platen to any desired extent afterit has been arrested, said last mentioned means comprising a clutchmember operatively connected to the platen, a second clutch memberoperatively connected to the stop mechanism, one of said clutch membershaving internal teeth, locking dogs mounted in slots on the other ofsaid clutch members and adapted to lock said clutch members together,and a Wedge movable longitudinally of the platen and adapted tomove saiddogs into locking engagement with said teeth.

16. In a typewriting machine, the combination of a rotative platen; stopmechanism for arresting the platen after a predetermined extent ofrotation; and means for affording a continued rotation of the platen inany desired extent after it has been arrested, said last mentioned meanscomprising a clutch operatively connected with the platen, a secondclutch member'operatively connected to the stop mechanism, teethprovided on one of said clutch members and independently movable dogscarried by the other of said clutch members and adapted to engage saidteeth, aspring-pressed cam cooperative with all of said dogs to maintainthem in engagement with said teeth, and hand actuated means for movingsaid cam against the pressure of its spring to release said dogs. 7 1

17. In a typewriting machine, the combi nation of a rotative platen;stop mechanism for arresting the platen; and means for rendering saidstop mechanism operative and inoperative, said last mentioned meanscomprising two clutch members, one of which is provided with teeth andthe other of which carries independently movable dogs for engaging saidteeth, and a floating cam for controlling said dogs.

18. In a typewriting machine, the combination of a rotative platen; stopmechanism for arresting said platen; and means for rendering said stopmechanism operative and inoperative to arrest the platen, said lastmentioned means comprising two clutch members one of which is providedwith teeth and the other of which is provided with independently andradially movable dogs adapted to engage said teeth, and a cone disposedintermediate of said dogs to control the engagement and disengagementthereof. p

19. Ina typewriting machine, the combination of a rotative platen; stopmechanism 7 for arresting said platen; and means for rendering said stopmechanism operative and inoperative to arrest the platen; said lastmentioned means comprising two clutch members one of which is providedwith teeth 1 and the other of which is provided with independently andradially movable dogs adapted to engage said teeth, a cone disposedintermediate of said dogs to control the engagement and disengagementthereof, and means whereby said cone is adapted to receive a movementlongitudinally and transversely of the axis of the platen.

20. In a typewriting machine, the combination offa rotative platen,stops, a clutch for rendering the stops eifective to arrest the rotationof the platen, a spring for forcing the members of the clutch intoengagement, a finger piece for releasing said clutch, and a positivelyengaging lock for locking the finger piece in the clutch-releasingposition.

21. In a typewriting machine, the combination of a rotative platen,stops, a clutch for rendering the stops efiective to arrest the rotationof the platen, a spring for forcing the members of the clutch intoengagement, a finger piece for releasing said clutch, and a positivelyengaging springpressed latch which is moved by its spring to the lockingposition and positively locks the finger piece in the clutch-releasingposition when the finger piece is moved to such position. I

' 22. Ina typewriting machine, the combination of a rotative platen,stops, a clutch for rendering the stops effective to arrest the rotationof the platen, a spring for forcing the members of the clutch intoennation of a rotative platen, stops, a clutch for rendering the stopseffective to arrest the rotation of the platen, a spring for forcing themembers of the clutch into engagement, a hand-actuated lever forreleasing said clutch, a spring-pressed pivoted latch that positivelyengages said lever and locks it in the clutch-releasing position, and akey for moving said latch from its locking position to afford are'engagement of the clutch.

24:. In a typewriting machine, the combination of a cylindrical platen;a line spacing Wheel adapted to turn with and to afford a movement ofthe platen independ- Q ently thereof; a clutch for connecting the I linespacing wheel and platen; and stop mechanism for arresting the platenafter a predetermined extent of rotation and for affording a continuedrotation of the platen toany desired extent after it has been arrested,said mechanism comprising means for positively clutching and connectingcertain portions of the stop mechanism with the platen at any positionof relative adjust-ment between the two.

25. In a typewriting machine, the combination of a rotative platen; aplaten shaft; billing stops for arresting the platen; a cone whichsurrounds the platen shaft;

clutch members which connect certain of said billing stops with theplaten, one of said clutch members comprising individually movable pawlswith which said cone cooperates; a spring for forcing said cone intolocking engagement with said pawls; and a release lever operative torelease the pressure of said spring on the cone.

26. In a typewriting machine, the combination of a rotative platen; aplaten shaft; billing stops for arresting the platen; a cone whichsurrounds the platen shaft; clutch members which connect certain of saidbilling stops with the platen, one of said clutch members comprisingindividually movable pawls with which said cone cooperates; a spring forforcing said cone into locking engagement with said pawls; a releaselever operative to release the pressure of said spring on the cone; andmeans for locking said release lever in the releasing position.

27. In a typewriting machine, the combination of a rotative platen;billing stops for nation of a rotative platen; billing stops forarresting the rotation of the platen; and clutch mechanism foroperatively connecting certain of said stops with the platen, saidclutch mechanism comprising three radially movable pawls, and threecontractile springs connected at their ends to said pawls. V

2 9. In a typewriting machine, the combination of a rotative platen;billing stops for arresting the rotation of the platen; and

clutch mechanism for operatively connecting certain of said stops withthe platen, said clutch mechanism comprising a springpressed sleevemounted for movement along the platen shaft, a flange formed on saidsleeve, a controlling device moved to operative position by said sleeve,individually movable locking dogs or pawls controlled by saidcontrolling device, and a release lever cooperativewith said flange.

80. In a typewriting machine, the combination of a rotative platen;billing stops for arresting the rotation of the platen; and clutchmechanism for operatively connectlng certain of said stops with theplaten, sald clutchmechanism comprising a springpressed sleeve mountedfor movement along theplaten shaft, a wedge moved to locking posltion bysaid sleeve, individually movable locking dogs or pawls moved to andlocked against withdrawal, from engagement by said wedge, and a releaselever operative to move said sleeve against the pressure of its springand thus release the Wedge and the locking pawls.

In a typewriting machine, the combination of a rotative platen; billingstops for arresting the rotation of the platen; and

clutch mechanism for operatively connect- -ing certain of said stopswith the platen,

said clutch mechanism comprising a series of radially, independently andvariably movable locking dogs or pawls spring pressed to theirinoperative positions, a single sprlng-pressed controlling device 00-operative with said locking dogs and which overcomes the pressure of thesprings which move the dogs into inoperative position and lock the pawlsin engagement, and a hand actuated device for moving said controllingdevice against the pressure of its spring.

In a typewriting machine, the combination of a carriage; a rotativeplaten carried thereby; billing devices situated wholly outside orbeyond the ends of the carriage, said billing devices comprising stopsfor arresting the rotation of the platen, an endand on which said bandwheels, stops,

less flexible carrier connected to certain of said stops, band wheelsaround which said endless carrier passes, and a clutch to operativelyconnect the platen and said carrier; and a single bracket plate securedto the carriage outside of or beyond the ends thereogi an clutch aresupported.

33. In a typewriting machine, the combination of a carriage; a rotativeplaten carried thereby; billing devices situated wholly outside orbeyond the ends of the carriage, said billing devices comprising stopsfor arresting the rotation of the platen, an end less flexible carrierconnected to certain of said stops, band wheels around which saidendless carrier passes, a clutch to operatively connect the platen andsaid carrier, a release lever for cont-rolling said clutch, alatch forlocking said release lever in the releasing position, and a singlebracket plate secured to the carriage outside or beyond the ends thereofand on which said band wheels stops, clutch, release lever, and latchare supported.

34. In a typewriting machine, the combination of a rotative platen;billing devices for arresting said platen, said billing devicescomprising stops for arresting the rotation of the platen, a flexibleendless carrier, certain of said stops being connected to said carrier,wheels around which said carrier passes, a shouldered screw on which oneof said wheels is mounted to turn, a slotted support in which said screwis received, an eccentric nut having a threaded connection with saidscrew, and a fixed pin against which the nut bears.

35. In a typewriting machine, the combination of a rotative platen;billing devices for arresting said platen, said billing devicescomprising stops for arresting the r0- tation of the platen, a clutchfor operatively connecting certain of said stops with the platen, acontrolling lever for said clutch, and a spring-pressed pivoted lockinglatch for said controlling lever, said locking latch having a shoulderthat is adapted to be interposed in the path of said lever to positivelylock it against movement.

Signed at Syracuse, in the county of Onondaga, and State of New Yorkthis 29th day of Sept. A. D. 1909.

HERBERT H. STEELE.

Witnesses Bnssm G. KITTELL, GEORGE L. GoLINc.

Copies of this patent maybe obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

